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Finding the Fourth Proportional to 8,012.84, 12,019.26 and 3,393.32

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Solution

The fourth proportional to 8,012.84, 12,019.26 and 3,393.32 is: 5,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,012.84 : 12,019.26 = 3,393.32 : x
  2. Step 2: Convert to fraction form
    8,012.84/12,019.26 = 3,393.32/x
  3. Step 3: Cross multiply
    8,012.84x = 12,019.26 × 3,393.32
  4. Step 4: Simplify right side
    8,012.84x = 40,785,195.34
  5. Step 5: Solve for x
    x = 40,785,195.34/8,012.84
  6. Step 6: Final answer
    x = 5,089.98

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.